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Title: Experimental study on bond strength between FRP and concrete
Authors: Yao, J
Teng, J 
Keywords: FRP composites
Bond strength
FRP-to-concrete bonded joints
Single shear test
Issue Date: 2003
Publisher: 中国建筑工业出版社
Source: 建筑结构学报 (Journal of building structures), 2003, v. 24, no. 5, p. 10-17, 23 How to cite?
Journal: 建筑结构学报 (Journal of building structures) 
Abstract: FRP复合材料与混凝土的粘结强度是混凝土结构外粘FRP板材这一加固新技术的重要研究课题。本文首先采用FRP板-混凝土块搭接接头的单剪试验方法,考虑FRP板的搭接长度、支座高度变化、试件对中偏位、FRP板与混凝土块的宽度比等因素,对FRP与混凝土的粘结强度进行了深入研究。然后利用试验结果与最近提出的陈-滕粘结强度公式作了比较研究。研究结果表明:(1)粘结破坏有FRP剥离破坏和混凝土拉剪破坏两种形式;(2)FRP板的搭接长度、试件对中偏位、FRP板与混凝土块的宽度比等因素对粘结强度有显著影响,支座高度变化也有一定影响;(3)粘结强度不小于“有效粘结长度”时,陈-滕粘结强度公式具有较高精度。
The bond strength between fiber rein forced plastic /polymer composites(FRP)sheet and concrete was studied by experiment on a simple shear test s et-up with emphasis on the effects of the bond length,support height,loading offset and FRP-to-concrete width ra tio.The test results were compared w ith those obtained from the Chen and T eng’s bond strength formulas.Following c onclusions are drawn from this study:(1)there are two kinds of failure modes,namely FRP debonding failure and con crete tension-shear failure;(2)the bond length,loading offset and FRP-to-concrete width ratio have significant effects on bond strength while the support height also has certain effect;(3)the results obtaind from Chen-Teng’ s bond strength formula agree well wi th the test results,provided the total bond length is no less than the effective bond len gth.
ISSN: 1000-6869
DOI: 10.14006/j.jzjgxb.2003.05.002
Rights: © 2003 中国学术期刊电子杂志出版社。本内容的使用仅限于教育、科研之目的。
© 2003 China Academic Journal Electronic Publishing House. It is to be used strictly for educational and research purposes.
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